Day by day, the edited headline for this thread becomes more and more obtusely inaccurate. What report exists (as the single, initial report was corrected within hours of its posting) which conflicts with the claim that it's an ongoing platform development goal to allow retail XB1 systems to function as dev kits? At the time it was changed, the original report had already been corrected, which makes this even more odd.
The Tom Phillips interview was a bizarre one as well. He was asking questions to determine if the retail-as-dev-unit implementation was still in the works, and he was give unequivocal answers ("...we're committed to that same vision we outlined a year ago - that eventually anybody will be able to make games on their Xbox - to use their retail Xbox One to make games on." and "...people will be able to develop games on retail Xboxes."), yet the author acts as though because a representative not involved in that process didn't outline the specifics of how it will be enacted in the future, that it makes the most sense to characterize the interaction as vague in the opening lines, with a similarly postured headline. My opinion is that the tone and innuendo would leave many readers with an impression at odds with the realities of the situation. That said, the points pressed on the "Xbox first" publishing policies (while similarly pointed), are an absolutely fair (and I'd say necessary) topic.